MC33PF8100EPES for i.MX8QM issues

[Sam1978]

i setup 2 MC33PF8100 chipset on PCB borad for Power suplier,i want communication to 8100EPES with I2C bus for cpu core voltage ,but can not program via i2c bus to imply voltage adjustment,pls contact me if someone knew what problem was,thanks

[igorpadykov]

Hi Sam

examples of i2c communication with pmic can be found in SCFW sources:  ..mx8qm_mek /board.c

SCFW Porting Kit​ 1.8.0

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/System-Controller-Firmware-101-Getting-s...

also may be useful AN12631  Normal and Secure Debug for i.MX8/8X Family of Applications Processors

Best regards
igor

[Sam1978]

Hi guy:

 Can you tell me what steps i need follow? i just want to program MC33PF8100EPES(2 chipsets),i found some USB 2 I2C software, try to read or write these to chipsets,but i failed ,data read from chipset was not correct,write access denied,send me it if you have a software that adequate operation

 what i need do if i read or write these 2 MC33PF8100EPES chipsets,such as adjust level for VDDOTP and TBBEN ,Poweron IO?

 the Register groups are functions regester,OTP mirror register,OTP config for hardwire

 thanks

Sam

[igorpadykov]

please look at programming board

https://www.nxp.com/design/development-boards/analog-toolbox/pf8200-pf8100-programming-board:KITPF82...

https://www.nxp.com/design/development-boards/analog-toolbox/pf8200-pf8100-programming-board:KITPF82...

KITPF8200FRDMPGM programming board

Best regards
igor